Current File : //backups/router/usr/local/www/services_ntpd_gps.php
<?php
/*
* Copyright (C) 2014-2016 Deciso B.V.
* Copyright (C) 2013 Dagorlad
* Copyright (C) 2012 Jim Pingle <jimp@pfsense.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
require_once("guiconfig.inc");
require_once("system.inc");
require_once("interfaces.inc");
require_once("plugins.inc.d/ntpd.inc");
config_read_array('ntpd', 'gps');
$copy_fields = array('port', 'type', 'speed', 'nmea', 'fudge1', 'fudge2', 'stratum', 'prefer', 'noselect',
'flag1', 'flag2', 'flag3', 'flag4', 'subsec', 'refid', 'initcmd');
if ($_SERVER['REQUEST_METHOD'] === 'GET') {
$pconfig = array();
foreach ($copy_fields as $fieldname) {
if (isset($config['ntpd']['gps'][$fieldname])) {
$pconfig[$fieldname] = $config['ntpd']['gps'][$fieldname];
} else {
$pconfig[$fieldname] = null;
}
}
} elseif ($_SERVER['REQUEST_METHOD'] === 'POST') {
$pconfig = $_POST;
$input_errors = array();
if (!empty($pconfig['stratum']) && ($pconfig['stratum'] > 17 || $pconfig['stratum'] < 0 || !is_numeric($pconfig['stratum']))) {
$input_errors[] = gettext("Clock stratum must be a number in the range 0..16");
}
// swap prefer
$pconfig['prefer'] = empty($pconfig['prefer']) ? "on" : "";
if (count($input_errors) == 0) {
$gps = array();
foreach ($copy_fields as $fieldname) {
if (!empty($pconfig[$fieldname])) {
$gps[$fieldname] = $pconfig[$fieldname];
}
}
$gps['initcmd']= base64_encode($gps['initcmd']);
$config['ntpd']['gps'] = $gps;
write_config("Updated NTP GPS Settings");
ntpd_configure_do();
header(url_safe('Location: /services_ntpd_gps.php'));
exit;
}
}
$service_hook = 'ntpd';
legacy_html_escape_form_data($pconfig);
include("head.inc");
?>
<body>
<script>
//<![CDATA[
$( document ).ready(function() {
$("#gpsprefer").click(function(){
if ($(this).prop('checked')) {
$("#gpsselect").prop('checked', false);
} else {
$("#gpsselect").prop('checked', true);
}
});
$("#gpsselect").click(function(){
if ($(this).prop('checked')) {
$("#gpsprefer").prop('checked', false);
} else {
$("#gpsprefer").prop('checked', true);
}
});
$("#showgpsinitbox").click(function(event){
$("#showgpsinitbox").parent().hide();
$("#showgpsinit").show();
});
});
/*
init commands are Base64 encoded
Default = #Sponsored, probably a Ublox
$PUBX,40,GSV,0,0,0,0*59
$PUBX,40,GLL,0,0,0,0*5C
$PUBX,40,ZDA,0,0,0,0*44
$PUBX,40,VTG,0,0,0,0*5E
$PUBX,40,GSV,0,0,0,0*59
$PUBX,40,GSA,0,0,0,0*4E
$PUBX,40,GGA,0,0,0,0
$PUBX,40,TXT,0,0,0,0
$PUBX,40,RMC,0,0,0,0*46
$PUBX,41,1,0007,0003,4800,0
$PUBX,40,ZDA,1,1,1,1
Generic = #do nothing
Garmin = #most Garmin
$PGRMC,,,,,,,,,,3,,2,4*52 #enable PPS @ 100ms
$PGRMC1,,1,,,,,,W,,,,,,,*30 #enable WAAS
$PGRMO,,3*74 #turn off all sentences
$PGRMO,GPRMC,1*3D #enable RMC
$PGRMO,GPGGA,1*20 #enable GGA
$PGRMO,GPGLL,1*26 #enable GLL
MediaTek = #Adafruit, Fastrax, some Garmin and others
$PMTK225,0*2B #normal power mode
$PMTK314,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0*28 #enable GLL, RMC, GGA and ZDA
$PMTK301,2*2E #enable WAAS
$PMTK320,0*2F #power save off
$PMTK330,0*2E #set WGS84 datum
$PMTK386,0*23 #disable static navigation (MT333X)
$PMTK397,0*23 #disable static navigation (MT332X)
$PMTK251,4800*14 #4800 baud rate
SiRF = #used by many devices
$PSRF103,00,00,01,01*25 #turn on GGA
$PSRF103,01,00,01,01*24 #turn on GLL
$PSRF103,02,00,00,01*24 #turn off GSA
$PSRF103,03,00,00,01*24 #turn off GSV
$PSRF103,04,00,01,01*24 #turn on RMC
$PSRF103,05,00,00,01*24 #turn off VTG
$PSRF100,1,4800,8,1,0*0E #set port to 4800,N,8,1
U-Blox = #U-Blox 5, 6 and probably 7
$PUBX,40,GGA,1,1,1,1,0,0*5A #turn on GGA all ports
$PUBX,40,GLL,1,1,1,1,0,0*5C #turn on GLL all ports
$PUBX,40,GSA,0,0,0,0,0,0*4E #turn off GSA all ports
$PUBX,40,GSV,0,0,0,0,0,0*59 #turn off GSV all ports
$PUBX,40,RMC,1,1,1,1,0,0*47 #turn on RMC all ports
$PUBX,40,VTG,0,0,0,0,0,0*5E #turn off VTG all ports
$PUBX,40,GRS,0,0,0,0,0,0*5D #turn off GRS all ports
$PUBX,40,GST,0,0,0,0,0,0*5B #turn off GST all ports
$PUBX,40,ZDA,1,1,1,1,0,0*44 #turn on ZDA all ports
$PUBX,40,GBS,0,0,0,0,0,0*4D #turn off GBS all ports
$PUBX,40,DTM,0,0,0,0,0,0*46 #turn off DTM all ports
$PUBX,40,GPQ,0,0,0,0,0,0*5D #turn off GPQ all ports
$PUBX,40,TXT,0,0,0,0,0,0*43 #turn off TXT all ports
$PUBX,40,THS,0,0,0,0,0,0*54 #turn off THS all ports (U-Blox 6)
$PUBX,41,1,0007,0003,4800,0*13 # set port 1 to 4800 baud
SureGPS = #Sure Electronics SKG16B
$PMTK225,0*2B
$PMTK314,1,1,0,1,0,5,0,0,0,0,0,0,0,0,0,0,0,1,0*2D
$PMTK301,2*2E
$PMTK397,0*23
$PMTK102*31
$PMTK313,1*2E
$PMTK513,1*28
$PMTK319,0*25
$PMTK527,0.00*00
$PMTK251,9600*17 #really needs to work at 9600 baud
*/
function set_gps_default() {
//This handles a new config and also a reset to a defined default config
var gpsdef = new Object();
//stuff the JS object as needed for each type
switch($("#gpstype").val()) {
case "Default":
gpsdef['nmea'] = 0;
gpsdef['speed'] = 0;
gpsdef['fudge1'] = "0.155";
gpsdef['fudge2'] = "";
gpsdef['inittxt'] = "JFBVQlgsNDAsR1NWLDAsMCwwLDAqNTkNCiRQVUJYLDQwLEdMTCwwLDAsMCwwKjVDDQokUFVCWCw0MCxaREEsMCwwLDAsMCo0NA0KJFBVQlgsNDAsVlRHLDAsMCwwLDAqNUUNCiRQVUJYLDQwLEdTViwwLDAsMCwwKjU5DQokUFVCWCw0MCxHU0EsMCwwLDAsMCo0RQ0KJFBVQlgsNDAsR0dBLDAsMCwwLDANCiRQVUJYLDQwLFRYVCwwLDAsMCwwDQokUFVCWCw0MCxSTUMsMCwwLDAsMCo0Ng0KJFBVQlgsNDEsMSwwMDA3LDAwMDMsNDgwMCwwDQokUFVCWCw0MCxaREEsMSwxLDEsMQ0K";
break;
case "Garmin":
gpsdef['nmea'] = 0;
gpsdef['speed'] = 0;
gpsdef['fudge1'] = "";
gpsdef['fudge2'] = "0.600";
gpsdef['inittxt'] = "JFBHUk1DLCwsLCwsLCwsLDMsLDIsOCo1RQ0KJFBHUk1DMSwsMSwsLCwsLFcsLCwsLCwsKjMwDQokUEdSTU8sLDMqNzQNCiRQR1JNTyxHUFJNQywxKjNEDQokUEdSTU8sR1BHR0EsMSoyMA0KJFBHUk1PLEdQR0xMLDEqMjYNCg==";
break;
case "Generic":
gpsdef['nmea'] = 0;
gpsdef['speed'] = 0;
gpsdef['fudge1'] = "";
gpsdef['fudge2'] = "0.400";
gpsdef['inittxt'] = "";
break;
case "MediaTek":
gpsdef['nmea'] = 0;
gpsdef['speed'] = 0;
gpsdef['fudge1'] = "";
gpsdef['fudge2'] = "0.400";
gpsdef['inittxt'] = "JFBNVEsyMjUsMCoyQg0KJFBNVEszMTQsMSwxLDAsMSwwLDAsMCwwLDAsMCwwLDAsMCwwLDAsMCwwLDEsMCoyOA0KJFBNVEszMDEsMioyRQ0KJFBNVEszMjAsMCoyRg0KJFBNVEszMzAsMCoyRQ0KJFBNVEszODYsMCoyMw0KJFBNVEszOTcsMCoyMw0KJFBNVEsyNTEsNDgwMCoxNA0K";
break;
case "SiRF":
gpsdef['nmea'] = 0;
gpsdef['speed'] = 0;
gpsdef['fudge1'] = "";
gpsdef['fudge2'] = "0.704"; //valid for 4800, 0.688 @ 9600, 0.640 @ USB
gpsdef['inittxt'] = "JFBTUkYxMDMsMDAsMDAsMDEsMDEqMjUNCiRQU1JGMTAzLDAxLDAwLDAxLDAxKjI0DQokUFNSRjEwMywwMiwwMCwwMCwwMSoyNA0KJFBTUkYxMDMsMDMsMDAsMDAsMDEqMjQNCiRQU1JGMTAzLDA0LDAwLDAxLDAxKjI0DQokUFNSRjEwMywwNSwwMCwwMCwwMSoyNA0KJFBTUkYxMDAsMSw0ODAwLDgsMSwwKjBFDQo=";
break;
case "U-Blox":
gpsdef['nmea'] = 0;
gpsdef['speed'] = 0;
gpsdef['fudge1'] = "";
gpsdef['fudge2'] = "0.400";
gpsdef['inittxt'] = "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";
break;
case "SureGPS":
gpsdef['nmea'] = 1;
gpsdef['speed'] = 16;
gpsdef['fudge1'] = "";
gpsdef['fudge2'] = "0.407";
gpsdef['inittxt'] = "JFBNVEsyMjUsMCoyQg0KJFBNVEszMTQsMSwxLDAsMSwwLDUsMCwwLDAsMCwwLDAsMCwwLDAsMCwwLDEsMCoyRA0KJFBNVEszMDEsMioyRQ0KJFBNVEszOTcsMCoyMw0KJFBNVEsxMDIqMzENCiRQTVRLMzEzLDEqMkUNCiRQTVRLNTEzLDEqMjgNCiRQTVRLMzE5LDAqMjUNCiRQTVRLNTI3LDAuMDAqMDANCiRQTVRLMjUxLDk2MDAqMTcNCg==";
break;
default:
return;
}
//then update the html and set the common stuff
$("#gpsnmea").val(gpsdef['nmea']);
$("#gpsspeed").val(gpsdef['speed']);
$("#gpsfudge1").val(gpsdef['fudge1']);
$("#gpsfudge2").val(gpsdef['fudge2']);
$("#gpsstratum").val("");
$("#gpsrefid").val("");
$("#gpsspeed").val(gpsdef['speed']);
$('#gpsflag1').prop('checked', true);
$('#gpsflag2').prop('checked', false);
$('#gpsflag3').prop('checked', true);
$('#gpsflag4').prop('checked', false);
$('#gpssubsec').prop('checked', false);
$("#gpsinitcmd").val(atob(gpsdef['inittxt']));
$("#gpsnmea").change();
$('.selectpicker').selectpicker('refresh');
}
$( document ).ready(function() {
$("#gpsnmea").change(function(){
var nmea_id = 0;
$("#gpsnmea option:selected").each(function(){
nmea_id = nmea_id + parseInt($(this).val());
});
$("#nmea").val(nmea_id);
});
$("#gpstype").change(set_gps_default);
// compute a NMEA checksum derived from the public domain function at http://www.hhhh.org/wiml/proj/nmeaxor.html
$("#calcnmeachk").click(function(){
var cmd = $("#nmeastring").val();
// Compute the checksum by XORing all the character values in the string.
var checksum = 0;
for (var i = 0; i < cmd.length; i++) {
checksum = checksum ^ cmd.charCodeAt(i);
}
// Convert it to hexadecimal (base-16, upper case, most significant byte first).
var hexsum = Number(checksum).toString(16).toUpperCase();
if (hexsum.length < 2) {
hexsum = ("00" + hexsum).slice(-2);
}
// Display the result
$("#nmeachecksum").text(hexsum);
});
});
//]]>
</script>
<?php include("fbegin.inc"); ?>
<section class="page-content-main">
<div class="container-fluid">
<div class="row">
<?php if (isset($input_errors) && count($input_errors) > 0) print_input_errors($input_errors); ?>
<section class="col-xs-12">
<div class="tab-content content-box col-xs-12">
<form method="post" name="iform" id="iform">
<div class="table-responsive">
<table class="table table-striped opnsense_standard_table_form">
<thead>
<tr>
<td style="width:22%">
<strong><?=gettext("NTP Serial GPS Configuration"); ?></strong>
</td>
<td style="width:78%; text-align:right">
<small><?=gettext("full help"); ?> </small>
<i class="fa fa-toggle-off text-danger" style="cursor: pointer;" id="show_all_help_page"></i>
</td>
</tr>
</thead>
<tbody>
<tr>
<td><a id="help_for_gps" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("GPS"); ?></td>
<td>
<!-- Start with the original "Default", list a "Generic" and then specific configs alphabetically -->
<select id="gpstype" name="type">
<option value="Generic" title="Generic"<?=empty($pconfig['type']) || $pconfig['type'] == 'Generic' ? " selected=\"selected\"" : "";?>><?=gettext('Generic') ?></option>
<option value="Default"<?=$pconfig['type'] == 'Default' ? " selected=\"selected\"" : ""; ?>><?=gettext('Default') ?></option>
<option value="Garmin" title="$PGRM... Most Garmin"<?=$pconfig['type'] == 'Garmin' ? " selected=\"selected\"" :"";?>><?=gettext('Garmin') ?></option>
<option value="MediaTek" title="$PMTK... Adafruit, Fastrax, some Garmin and others"<?=$pconfig['type'] == 'MediaTek' ? " selected=\"selected\"" :"";?>>MediaTek</option>
<option value="SiRF" title="$PSRF... Used by many devices"<?=$pconfig['type'] == 'SiRF' ? " selected=\"selected\"" :"";?>><?=gettext('SiRF') ?></option>
<option value="U-Blox" title="$PUBX... U-Blox 5, 6 and probably 7"<?=$pconfig['type'] == 'U-Blox' ? " selected=\"selected\"" : "";?>><?=gettext('U-Blox') ?></option>
<option value="SureGPS" title="$PMTK... Sure Electronics SKG16B"<?=$pconfig['type'] == 'SureGPS' ? " selected=\"selected\"" : "";?>><?=gettext('SureGPS') ?></option>
<option value="Custom"<?=$pconfig['type'] == 'Custom' ? " selected=\"selected\"" : ""; ?>><?=gettext('Custom') ?></option>
</select>
<div class="hidden" data-for="help_for_gps">
<?=gettext("This option allows you to select a predefined configuration.");?>
<br />
<strong><?= gettext('Note:') ?></strong> <?= gettext('Select Generic if your GPS is not listed.') ?><br />
<strong><?= gettext('Note:') ?></strong> <?= gettext('The predefined configurations assume your GPS has already been set to NMEA mode.') ?>
</div>
</td>
</tr>
<?php
/* Probing would be nice, but much more complex. Would need to listen to each port for 1s+ and watch for strings. */
$serialports = glob("/dev/cua?[0-9]{,.[0-9]}", GLOB_BRACE);
if (!empty($serialports)):?>
<tr>
<td><a id="help_for_gpsport" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext('Serial port') ?></td>
<td>
<select name="port" class="selectpicker">
<option value=""><?=gettext("none");?></option>
<?php
foreach ($serialports as $port):?>
<option value="<?=substr($port,5);?>" <?=substr($port,5) === $pconfig['port'] ? 'selected="selected"' : "";?>>
<?=substr($port,5);?>
</option>
<?php
endforeach; ?>
</select>
<div class="hidden" data-for="help_for_gpsport">
<?=gettext("All serial ports are listed, be sure to pick the port with the GPS attached."); ?>
</div>
<br/>
<?=gettext("Serial port baud rate."); ?><br />
<select id="gpsspeed" name="speed" class="selectpicker">
<option value="0" <?=empty($pconfig['speed']) ? " selected=\"selected\"" : ""; ?>>4800</option>
<option value="16" <?=$pconfig['speed'] === '16' ? " selected=\"selected\"" : "";?>>9600</option>
<option value="32" <?=$pconfig['speed'] === '32' ? " selected=\"selected\"" : "";?>>19200</option>
<option value="48" <?=$pconfig['speed'] === '48' ? " selected=\"selected\"" : "";?>>38400</option>
<option value="64" <?=$pconfig['speed'] === '64' ? " selected=\"selected\"" : "";?>>57600</option>
<option value="80" <?=$pconfig['speed'] === '80' ? " selected=\"selected\"" : "";?>>115200</option>
</select>
<div class="hidden" data-for="help_for_gpsport">
<?=gettext("Note: A higher baud rate is generally only helpful if the GPS is sending too many sentences. It is recommended to configure the GPS to send only one sentence at a baud rate of 4800 or 9600."); ?>
</div>
</td>
</tr>
<?php
endif;?>
<tr>
<!-- 1 = RMC, 2 = GGA, 4 = GLL, 8 = ZDA or ZDG -->
<td><a id="help_for_nmea" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext('NMEA sentences') ?></td>
<td>
<input type="hidden" name="nmea" value="<?=$pconfig['nmea'];?>" id="nmea">
<select id="gpsnmea" multiple="multiple" class="selectpicker">
<option value="0" <?=empty($pconfig['nmea']) ? " selected=\"selected\"" : ""; ?>><?=gettext("All");?></option>
<option value="1" <?=intval($pconfig['nmea']) & 1 ? " selected=\"selected\"" : "";?>><?=gettext("RMC");?></option>
<option value="2" <?=intval($pconfig['nmea']) & 2 ? " selected=\"selected\"" : "";?>><?=gettext("GGA");?></option>
<option value="4" <?=intval($pconfig['nmea']) & 4 ? " selected=\"selected\"" : "";?>><?=gettext("GLL");?></option>
<option value="8" <?=intval($pconfig['nmea']) & 8 ? " selected=\"selected\"" : "";?>><?=gettext("ZDA or ZDG");?></option>
</select>
<div class="hidden" data-for="help_for_nmea">
<?=gettext("By default NTP will listen for all supported NMEA sentences. Here one or more sentences to listen for may be specified."); ?>
</div>
</td>
</tr>
<tr>
<td><a id="help_for_fudge1" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?= gettext('Fudge time 1 (seconds)') ?></td>
<td>
<input name="fudge1" type="text" id="gpsfudge1" min="-1" max="1" size="20" value="<?=$pconfig['fudge1'];?>" />
<div class="hidden" data-for="help_for_fudge1">
<?= gettext("Fudge time 1 is used to specify the GPS PPS signal offset (default: 0.0).") ?>
</div>
</tr>
<tr>
<td><a id="help_for_fudge2" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext('Fudge time 2 (seconds)');?></td>
<td>
<input name="fudge2" type="text" id="gpsfudge2" min="-1" max="1" size="20" value="<?=$pconfig['fudge2'];?>" />
<div class="hidden" data-for="help_for_fudge2">
<?= gettext("Fudge time 2 is used to specify the GPS time offset (default: 0.0).") ?>
</div>
</td>
</tr>
<tr>
<td><a id="help_for_stratum" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext('Stratum') ?></td>
<td>
<input name="stratum" type="text" id="gpsstratum" value="<?=$pconfig['stratum'];?>" />
<div class="hidden" data-for="help_for_stratum">
<?=gettext("(0-16)");?><br />
<?=gettext("This may be used to change the GPS Clock stratum (default: 0). This may be useful if, for some reason, you want ntpd to prefer a different clock"); ?>
</div>
</td>
</tr>
<tr>
<td><i class="fa fa-info-circle text-muted"></i> <?=gettext('Flags') ?></td>
<td>
<table class="table table-condensed">
<tr>
<td colspan="2">
<?=gettext("Normally there should be no need to change these options from the defaults."); ?><br />
</td>
</tr>
<tr>
<td>
<input name="prefer" type="checkbox" id="gpsprefer" <?=empty($pconfig['prefer']) ? " checked=\"checked\"" : ""; ?> />
</td>
<td>
<?=gettext("NTP should prefer this clock (default: enabled)."); ?>
</td>
</tr>
<tr>
<td>
<input name="noselect" type="checkbox" id="gpsselect" <?=!empty($pconfig['noselect']) ? " checked=\"checked\"" : ""; ?> />
</td>
<td>
<?=gettext("NTP should not use this clock, it will be displayed for reference only (default: disabled)."); ?>
</td>
</tr>
<tr>
<td>
<input name="flag1" type="checkbox" id="gpsflag1"<?=!empty($pconfig['flag1']) ? " checked=\"checked\"" : ""; ?> />
</td>
<td>
<?=gettext("Enable PPS signal processing (default: enabled)."); ?>
</td>
</tr>
<tr>
<td>
<input name="flag2" type="checkbox" id="gpsflag2"<?=!empty($pconfig['flag2']) ? " checked=\"checked\"" : ""; ?> />
</td>
<td>
<?=gettext("Enable falling edge PPS signal processing (default: rising edge)."); ?>
</td>
</tr>
<tr>
<td>
<input name="flag3" type="checkbox" id="gpsflag3"<?=!empty($pconfig['flag3']) ? " checked=\"checked\"" : ""; ?> />
</td>
<td>
<?=gettext("Enable kernel PPS clock discipline (default: enabled)."); ?>
</td>
</tr>
<tr>
<td>
<input name="flag4" type="checkbox" id="gpsflag4"<?=!empty($pconfig['flag4']) ? " checked=\"checked\"" : ""; ?> />
</td>
<td>
<?=gettext("Obscure location in timestamp (default: unobscured)."); ?>
</td>
</tr>
<tr>
<td>
<input name="subsec" type="checkbox" id="gpssubsec"<?=!empty($pconfig['subsec']) ? " checked=\"checked\"" : ""; ?> />
</td>
<td>
<?= gettext("Log the sub-second fraction of the received time stamp (default: Not logged).") ?>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td><a id="help_for_refid" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext('Clock ID') ?></td>
<td>
<input name="refid" type="text" id="gpsrefid" value="<?=$pconfig['refid'];?>" />
<div class="hidden" data-for="help_for_refid">
<?=gettext("(1 to 4 characters)");?><br />
<?=gettext("This may be used to change the GPS Clock ID (default: GPS).") ?>
</div>
</td>
</tr>
<tr>
<td><i class="fa fa-info-circle text-muted"></i> <?=gettext('GPS Initialization') ?></td>
<td>
<div >
<input class="btn btn-xs btn-default" type="button" id="showgpsinitbox" value="<?= html_safe(gettext('Advanced')) ?>" /> - <?=gettext("Show GPS Initialization commands");?>
</div>
<div id="showgpsinit" style="display:none">
<textarea name="initcmd" class="formpre" id="gpsinitcmd" cols="65" rows="7"><?=base64_decode($pconfig['initcmd']);?></textarea><br />
<?=gettext("Note: Commands entered here will be sent to the GPS during initialization. ".
"Please read and understand your GPS documentation before making any changes here.");?><br /><br />
<strong><?=gettext("NMEA checksum calculator");?></strong><br /><br />
<?=gettext('Enter the text between "$" and "*" of a NMEA command string.');?><br /><br />
<div class="row" style="max-width: 348px">
<div class="col-xs-12">
<div class="input-group">
<input name="nmeastring" type="text" id="nmeastring" />
<span class="input-group-btn">
<label class="btn btn-primary" id="calcnmeachk"><?= gettext('Calculate') ?></label>
</span>
</div>
</div>
</div><br />
<?= gettext("Checksum:") ?> <span id="nmeachecksum"><?=gettext("Please click the \"Calculate\" to get a result.");?></span>
</div>
</td>
</tr>
<tr>
<td> </td>
<td>
<input name="Submit" type="submit" class="btn btn-primary" value="<?=html_safe(gettext('Save'));?>" />
</td>
</tr>
</tbody>
<tfoot>
<tr>
<td colspan="2">
<?=gettext('A GPS connected via a serial port may be used as a reference clock for NTP. If the GPS also supports PPS and is properly configured, and connected, that GPS may also be used as a Pulse Per Second clock reference. NOTE: a USB GPS may work, but is not recommended due to USB bus timing issues.') ?>
<br />
<br /><?=sprintf(gettext("For the best results, NTP should have at least three sources of time. So it is best to configure at least 2 servers under %sServices: Network Time%s to minimize clock drift if the GPS data is not valid over time. Otherwise ntpd may only use values from the unsynchronized local clock when providing time to clients."),'<a href="services_ntpd.php">','</a>') ?>
</td>
</tr>
</tfoot>
</table>
</div>
</form>
</div>
</section>
</div>
</div>
</section>
<?php include("foot.inc"); ?>
Mini Shell